All Countries
Weather & Climate in Jacksonville, NY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Jacksonville experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 24°F in January while summers reach 70°F in July. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 37.0 inches. The area receives 56.2 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 1,059 feet.
Temperature
24°F Jan (-5°C)
70°F Jul (21°C)
| Annual Average | 47.6°F |
| 12% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 1,059 ft (323 m) |
| Area | 3.6 sq mi (9.4 km²) |
| Population Density | 149/sq mi |
| Coordinates | 42.5061°N, 76.6188°W |
| Timezone | America/New_York |
| County | Tompkins County County |
| Nearest Airport | Ithaca Tompkins International (ITH) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 73.9 / 100 |
| Social Vulnerability | 30.9 / 100 |
| Community Resilience | 83.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.3.
| Jun 29, 2024 | 14 km W of Ellisburg, New York | M3.3 | 137 km | 5 km |
| Feb 3, 2001 | 6 km W of Bath, New York | M3.2 | 66 km | 0 km |
| Jun 5, 2009 | 4 km SSE of Attica, New York | M2.9 | 138 km | 5 km |
| Jun 10, 2025 | 10 km NW of Forksville, Pennsylvania | M2.8 | 105 km | 8 km |
| Mar 15, 2022 | 5 km SSW of Warsaw, New York | M2.6 | 127 km | 5 km |
| Apr 11, 2007 | 6 km NNE of Sodus Point, New York | M2.6 | 95 km | 7 km |
| Jan 25, 1999 | New York | M2.5 | 104 km | 3 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
132 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 10 fatalities, 50 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 31, 1998 | EF3 | 62 km | 62.0 mi | 0 |
| May 2, 1983 | EF3 | 85 km | 3.0 mi | 0 |
| May 2, 1983 | EF3 | 53 km | 15.0 mi | 0 |
| May 2, 1983 | EF3 | 57 km | 2.0 mi | 0 |
| May 2, 1983 | EF3 | 74 km | 20.0 mi | 1 |
| Jun 2, 1969 | EF3 | 55 km | 17.5 mi | 0 |
| Aug 30, 1955 | EF3 | 32 km | 1.0 mi | 0 |
| Jun 13, 2018 | EF2 | 88 km | 5.2 mi | 0 |
| Jul 8, 2014 | EF2 | 96 km | 2.5 mi | 4 |
| Aug 21, 2011 | EF2 | 64 km | 7.9 mi | 0 |
| Apr 28, 2011 | EF2 | 70 km | 7.4 mi | 0 |
| Apr 27, 2011 | EF2 | 37 km | 0.9 mi | 0 |
| May 16, 2009 | EF2 | 62 km | 5.7 mi | 0 |
| May 31, 1998 | EF2 | 84 km | 1.0 mi | 0 |
| Aug 28, 1990 | EF2 | 21 km | 2.5 mi | 0 |
| Oct 14, 1989 | EF2 | 70 km | 2.0 mi | 2 |
| May 2, 1983 | EF2 | 94 km | 9.8 mi | 0 |
| Sep 18, 1977 | EF2 | 83 km | 2.0 mi | 0 |
| Sep 19, 1954 | EF2 | 83 km | 1.0 mi | 0 |
| Jul 16, 2024 | EF1 | 95 km | 1.4 mi | 1 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: DRY MARSH (1,018 acres, 2010).
| Year | Name | Acres Burned | Distance |
| 2010 | DRY MARSH | 1,018 | 54 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-5°C) | 2.1 in | Coldest |
| February | 25°F (-4°C) | 2.0 in | Driest |
| March | 33°F (1°C) | 2.4 in | |
| April | 45°F (7°C) | 3.1 in | |
| May | 56°F (13°C) | 3.1 in | |
| June | 65°F (18°C) | 3.8 in | Wettest |
| July | 70°F (21°C) | 3.5 in | Warmest |
| August | 68°F (20°C) | 3.3 in | |
| September | 61°F (16°C) | 3.8 in | |
| October | 50°F (10°C) | 3.1 in | |
| November | 40°F (4°C) | 3.2 in | |
| December | 30°F (-1°C) | 2.7 in |
Jacksonville has a seasonal temperature swing of 46°F / from 24°F in January to 70°F in July. Total annual precipitation is 36.0 inches, with June being the wettest month (3.8") and February the driest (2.0").